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Worksheets8.E.1.3 Objective
Total questions: 10
Worksheet time: 8mins
Name
Class
Date
1.
The measure of how clear or cloudy a substance is
a)
Salinity
b)
Bioindicator
c)
Turbidity
d)
Eutrophication
2.
the measure of how acidic or basic a substance is
a)
dissolved oxygen
b)
salinity
c)
turbidity
d)
pH
3.
Bio-indicators
a)
A measure of how acidic or how basic a liquid is
b)
An organism used to monitor the health of an ecosystem.
c)
a chemical that includes nitrogen and oxygen, often used as a fertilizer
4.
Aquatic
a)
Land
b)
Water
c)
Heat
5.
Eutrophication
a)
An organism used to monitor the health of an ecosystem.
b)
Too many nutrients in a body of water frequently due to runoff from the land. It causes a dense growth of plant life and death of animal life from lack of oxygen. (It can cause algal bloom.)
c)
amount of oxygen that is present in the water
6.
Dissolved oxygen
a)
A measure of how clear water is
b)
A fertilizer containing phosphorus compounds
c)
amount of oxygen that is present in the water
7.
Which BEST determines the health of a lake used as a source of freshwater?
a)
its depth and width
b)
its temperature and pH
c)
its location and depth
d)
its temperature and depth
8.
If a body of water has high turbidity levels, what can MOST LIKELY be concluded?
a)
It has a low pH
b)
It is unsafe to drink
c)
It is too hot to drink
d)
It contains a lot of chemicals
9.
If a large amount of fertilizer enters a lake, which will most likely happen?
a)
the fish population in the lake will increase
b)
the temperature of the lake will increase
c)
the number of fish dying in the lake will increase
d)
the available food supply for fish in the lake in increase
10.
Rainbow trout are found in mountain streams and are sensitive to changes in their habitat. Which would be the best description for the use rainbow trout in water quality testing?
a)
biological indicator
b)
invasive species
c)
nitrates
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